Waterlogged foundation

mandm65

[FONT=&quot][/FONT][FONT=&quot]Hi,[/FONT]

[FONT=&quot][/FONT][FONT=&quot] We have just dug out the footings for our extension (1 metres deep) and have a solid clay base. However, once left overnight, the trench begins to fill with water (there are no leaking pipes). I guess this is this just rising ground water (high water tables) and needs to be pumped out before BC can inspect/pass the footings.[/FONT]
[FONT=&quot] [/FONT]
[FONT=&quot]Do we need to inform the BC of water logging or its best just to let them see the footings without water?[/FONT]
[FONT=&quot]Do we need to ensure anything else to future proof the foundation? I guess water will not affect the concrete but thought best to ask.[/FONT]
[FONT=&quot]
Thanks for any help[/FONT]

TRB

All you will need to do is bottom out the footings before pouring concrete ( clear away any waterlogged clay) . The water will have no effect on the concrete.

mandm65

thanks, guess no need to get BC invloved before bottom out the footings.

Ruski

Clay? Me think you'll be needing pilings

BCO will offer correct advice...

Russ

Kiran

Presumably foundations have been designed? But not withstanding that clay certainly does not guarantee piling. Many buildings are constructed on traditional foundation methods in clay soil.

As above yo need to dewater the excavation prior to the bco turning up to inspect. Dig a small sump at one end to pump the water out from. Once you e done this the waterlogged surface needs to be scrapped off to good ground.